def test_instance_get_all_by_host(self):
self.mox.StubOutWithMock(db, "instance_get_all_by_host")
self.mox.StubOutWithMock(db, "instance_get_all_by_host_and_node")
db.instance_get_all_by_host(self.context.elevated(), "host").AndReturn("result")
db.instance_get_all_by_host_and_node(self.context.elevated(), "host", "node").AndReturn("result")
self.mox.ReplayAll()
result = self.conductor.instance_get_all_by_host(self.context, "host")
self.assertEqual(result, "result")
result = self.conductor.instance_get_all_by_host(self.context, "host", "node")
self.assertEqual(result, "result")
def test_get_by_host_and_node(self):
fakes = [self.fake_instance(1), self.fake_instance(2)]
self.mox.StubOutWithMock(db, "instance_get_all_by_host_and_node")
db.instance_get_all_by_host_and_node(self.context, "foo", "bar").AndReturn(fakes)
self.mox.ReplayAll()
inst_list = instance.InstanceList.get_by_host_and_node(self.context, "foo", "bar")
for i in range(0, len(fakes)):
self.assertIsInstance(inst_list.objects[i], instance.Instance)
self.assertEqual(inst_list.objects[i].uuid, fakes[i]["uuid"])
self.assertRemotes()
def test_get_by_host_and_node(self):
fakes = [self.fake_instance(1), self.fake_instance(2)]
self.mox.StubOutWithMock(db, 'instance_get_all_by_host_and_node')
db.instance_get_all_by_host_and_node(self.context, 'foo',
'bar').AndReturn(fakes)
self.mox.ReplayAll()
inst_list = instance.InstanceList.get_by_host_and_node(
self.context, 'foo', 'bar')
for i in range(0, len(fakes)):
self.assertIsInstance(inst_list.objects[i], instance.Instance)
self.assertEqual(inst_list.objects[i].uuid, fakes[i]['uuid'])
self.assertRemotes()
def test_instance_get_all_by_host(self):
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
self.mox.StubOutWithMock(db, 'instance_get_all_by_host_and_node')
db.instance_get_all_by_host(self.context.elevated(),
'host').AndReturn('result')
db.instance_get_all_by_host_and_node(self.context.elevated(), 'host',
'node').AndReturn('result')
self.mox.ReplayAll()
result = self.conductor.instance_get_all_by_host(self.context, 'host')
self.assertEqual(result, 'result')
result = self.conductor.instance_get_all_by_host(
self.context, 'host', 'node')
self.assertEqual(result, 'result')
def test_instance_get_all_by_host(self):
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
self.mox.StubOutWithMock(db, 'instance_get_all_by_host_and_node')
db.instance_get_all_by_host(self.context.elevated(),
'host').AndReturn('result')
db.instance_get_all_by_host_and_node(self.context.elevated(), 'host',
'node').AndReturn('result')
self.mox.ReplayAll()
result = self.conductor.instance_get_all_by_host(self.context, 'host')
self.assertEqual(result, 'result')
result = self.conductor.instance_get_all_by_host(self.context, 'host',
'node')
self.assertEqual(result, 'result')
def test_get_by_host_and_node(self):
fakes = [self.fake_instance(1),
self.fake_instance(2)]
self.mox.StubOutWithMock(db, 'instance_get_all_by_host_and_node')
db.instance_get_all_by_host_and_node(self.context, 'foo', 'bar'
).AndReturn(fakes)
self.mox.ReplayAll()
inst_list = instance.InstanceList.get_by_host_and_node(self.context,
'foo', 'bar')
for i in range(0, len(fakes)):
self.assertTrue(isinstance(inst_list.objects[i],
instance.Instance))
self.assertEqual(inst_list.objects[i].uuid, fakes[i]['uuid'])
self.assertRemotes()
def update_available_resource(self, context):
"""Override in-memory calculations of compute node resource usage based
on data audited from the hypervisor layer.
Add in resource claims in progress to account for operations that have
declared a need for resources, but not necessarily retrieved them from
the hypervisor layer yet.
"""
resources = self.driver.get_available_resource(self.nodename)
if not resources:
# The virt driver does not support this function
LOG.audit(_("Virt driver does not support "
"'get_available_resource' Compute tracking is disabled."))
self.compute_node = None
return
self._verify_resources(resources)
self._report_hypervisor_resource_view(resources)
# Grab all instances assigned to this node:
instances = db.instance_get_all_by_host_and_node(context, self.host,
self.nodename)
# Now calculate usage based on instance utilization:
self._update_usage_from_instances(resources, instances)
self._report_final_resource_view(resources)
self._sync_compute_node(context, resources)
def get_by_host_and_node(cls, context, host, node, expected_attrs=None):
db_inst_list = db.instance_get_all_by_host_and_node(
context,
host,
node,
columns_to_join=_expected_cols(expected_attrs))
return _make_instance_list(context, cls(), db_inst_list,
expected_attrs)
def update_available_resource(self, context):
"""Override in-memory calculations of compute node resource usage based
on data audited from the hypervisor layer.
Add in resource claims in progress to account for operations that have
declared a need for resources, but not necessarily retrieved them from
the hypervisor layer yet.
"""
LOG.audit(_("Auditing locally available compute resources"))
resources = self.driver.get_available_resource(self.nodename)
if not resources:
# The virt driver does not support this function
LOG.audit(
_("Virt driver does not support "
"'get_available_resource' Compute tracking is disabled."))
self.compute_node = None
return
self._verify_resources(resources)
self._report_hypervisor_resource_view(resources)
# Grab all instances assigned to this node:
instances = db.instance_get_all_by_host_and_node(
context, self.host, self.nodename)
# Now calculate usage based on instance utilization:
self._update_usage_from_instances(resources, instances)
# Grab all in-progress migrations:
migrations = db.migration_get_in_progress_by_host_and_node(
context, self.host, self.nodename)
self._update_usage_from_migrations(resources, migrations)
# Detect and account for orphaned instances that may exist on the
# hypervisor, but are not in the DB:
orphans = self._find_orphaned_instances()
self._update_usage_from_orphans(resources, orphans)
self._report_final_resource_view(resources)
self._sync_compute_node(context, resources)
def get_by_host_and_node(cls, context, host, node, expected_attrs=None):
db_inst_list = db.instance_get_all_by_host_and_node(
context, host, node)
return _make_instance_list(context, cls(), db_inst_list,
expected_attrs)
